Function Of Supply Pump - Kubota D1803-CR-E4 Workshop Manual

MECHANISM
3. Fuel system
[SCV]
(7) Cylinder part
(8) Solenoid
[Overflow valve]
(10) Ball
(11) Valve body
(12) Spring
(13) Port

3.10.3 Function of supply pump

The supply pump further increases the pressure of fuel
fed by the electromagnetic fuel feed pump and delivers
it to the rail.
The supply pump corresponds to conventional injection
pumps but pressurizes the fuel to more than 2 times
that of conventional pumps for delivery to the rail.
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(9) Armature
(14) Valve piston
(D) While closed
(E) While opened
Suction control valve (SCV)
4. ENGINE
4-21
KiSC issued 12, 2018 A